期刊
CRYSTAL GROWTH & DESIGN
卷 18, 期 5, 页码 3044-3050出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.cgd.8b00194
关键词
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资金
- NSFC [21471124, 21531007]
- NSF of Shannxi province [15JS113]
- Australian Research Council Future Fellowship [FT12010072]
A new metal-organic framework (MOF), [Co-3(tzba)(2)(bpy)(3)(F)(2)]center dot DMF center dot C2H5OH center dot 2H(2)O (1), has been constructed by solvothermal reaction of Co(NO3)(2) with 4-(1H-Tetrazol-5-yl) benzoic acid (H(2)tzba) and 4,4'-bipyridine (bpy) mixed ligands. 1 shows an interpenetrated three-dimensional (3D) pillar-layered framework with the novel trinuclear [Co-3(CN4 )(2)(F-2)] clusters. The pi center dot center dot center dot pi interactions existing among three bpy give rise to an uncommon tripillar in the framework. The framework reveals a reversible dynamic flexibility related to the solvent molecules. Meanwhile, the adsorption of CO2 exhibits an interesting gate opening-closing phenomenon which features the S-shaped isotherms with dramatic hysteretic desorption. The selective adsorption of CO2 over CH4 as well as the adsorption mechanism for CO2 were also discussed deeply.
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